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<div class="section" title="History and Acknowledgement">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="range.history_ack"></a><a class="link" href="history_ack.html" title="History and Acknowledgement"> History and Acknowledgement</a>
</h2></div></div></div>
<a name="range.history_ack.version_1___before_boost_1_43"></a><h4>
<a name="id688219"></a>
      <a class="link" href="history_ack.html#range.history_ack.version_1___before_boost_1_43">Version 1 -
      before Boost 1.43</a>
    </h4>
<p>
      The library have been under way for a long time. Dietmar K&#252;hl originally intended
      to submit an <code class="computeroutput"><span class="identifier">array_traits</span></code> class
      template which had most of the functionality present now, but only for arrays
      and standard containers.
    </p>
<p>
      Meanwhile work on algorithms for containers in various contexts showed the
      need for handling pairs of iterators, and string libraries needed special treatment
      of character arrays. In the end it made sense to formalize the minimal requirements
      of these similar concepts. And the results are the Range concepts found in
      this library.
    </p>
<p>
      The term Range was adopted because of paragraph 24.1/7 from the C++ standard:
    </p>
<p>
      Most of the library's algorithmic templates that operate on data structures
      have interfaces that use ranges. A range is a pair of iterators that designate
      the beginning and end of the computation. A range [i, i) is an empty range;
      in general, a range [i, j) refers to the elements in the data structure starting
      with the one pointed to by i and up to but not including the one pointed to
      by j. Range [i, j) is valid if and only if j is reachable from i. The result
      of the application of functions in the library to invalid ranges is undefined.
    </p>
<p>
      Special thanks goes to
    </p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
        Pavol Droba for help with documentation and implementation
      </li>
<li class="listitem">
        Pavel Vozenilek for help with porting the library
      </li>
<li class="listitem">
        Jonathan Turkanis and John Torjo for help with documentation
      </li>
<li class="listitem">
        Hartmut Kaiser for being review manager
      </li>
<li class="listitem">
        Jonathan Turkanis for porting the lib (as far sa possible) to vc6 and vc7.
      </li>
</ul></div>
<p>
      The concept checks and their documentation was provided by Daniel Walker.
    </p>
<a name="range.history_ack.version_2___boost_1_43_and_beyond"></a><h4>
<a name="id688312"></a>
      <a class="link" href="history_ack.html#range.history_ack.version_2___boost_1_43_and_beyond">Version
      2 - Boost 1.43 and beyond</a>
    </h4>
<p>
      This version introduced Range Adaptors and Range Algorithms. This version 2
      is the result of a merge of all of the RangeEx features into Boost.Range.
    </p>
<p>
      There were an enormous number of very significant contributors through all
      stages of this library.
    </p>
<p>
      The people in the following list all made contributions in the form of reviews,
      user feedback, design suggestions, or defect detection:
    </p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
        Thorsten Ottosen: review management, design advice, documentation feedback
      </li>
<li class="listitem">
        Eric Niebler: feedback
      </li>
<li class="listitem">
        Joel de Guzman: review
      </li>
<li class="listitem">
        Mathias Gaunard: review
      </li>
<li class="listitem">
        David Abrahams: implementation advice
      </li>
<li class="listitem">
        Robert Jones: defect reports, usage feedback
      </li>
<li class="listitem">
        Sean Parent: contributed experience from the Adobe range library
      </li>
<li class="listitem">
        Arno Schoedl: implementations, and review
      </li>
<li class="listitem">
        Rogier van Dalen: review
      </li>
<li class="listitem">
        Vincente Botet: review, documentation feedback
      </li>
</ul></div>
<p>
      Regardless of how I write this section it will never truly fairly capture the
      gratitude that I feel to all who have contributed. Thank you everyone.
    </p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2003 -2010 Thorsten Ottosen, Neil Groves<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
</div></td>
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